Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833018 | Magnetic, hot-melt adhering soundproofing sheet | Karlheinz Bildner | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833018 | Magnetic, hot-melt adhering soundproofing sheet | Karlheinz Bildner | 1989-05-23 |